Title :
Derivation of closed-form spatial Green´s functions for printed circuit structures with substrates and superstrates
Author :
Aksun, M.I. ; Mittra, R.
Author_Institution :
Electromagn. Commun. Lab., Illinois Univ., Urbana, IL, USA
Abstract :
A novel approach to deriving closed-form expressions for the spatial domain Green´s function (vector and scalar potentials) associated with a horizontal electric dipole (HED) located over a thick substrate has recently been described. This technique is extended here to analyze a planar structure with both a substrate and a superstrate. The superstrate may form naturally on a printed antenna due to the weather conditions: it may also be deliberately introduced either as a protective cover or as a means to enhance the gain of a printed antenna by utilizing the substrate-superstrate resonances.<>
Keywords :
Green´s function methods; antenna theory; dipole antennas; microstrip antennas; closed-form expressions; gain; planar structure; printed antenna; printed circuit structures; protective cover; scalar potentials; spatial domain Green´s function; substrate-superstrate resonances; substrates; superstrates; vector potential; weather conditions; Closed-form solution; Dielectric substrates; Dipole antennas; Green´s function methods; Least squares approximation; Least squares methods; MMICs; Microstrip antennas; Printed circuits; Reflection;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.175101
